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We consider a random interface model on the discrete torus with $2n$ sites, obtained from the classical corner flip dynamics but with a weak global perturbation, namely an asymmetry of order $n^{-\gamma}$ of the direction of growth that…

概率论 · 数学 2025-12-10 Patrícia Gonçalves , Martin Hairer , Maria Chiara Ricciuti

We propose a new generalisation of jump-telegraph process with variable velocities and jumps. Amplitude of the jumps and velocity values are random, and they depend on the time spent by the process in the previous state of the underlying…

概率论 · 数学 2013-11-22 Nikita Ratanov

We study stochastic SQG equations on the torus $\mathbb{T}^2$ with multiplicative transport noise in the $L^2$-setting. Under a suitable scaling of the noise, we show that the solutions converge weakly to the unique solution to the…

概率论 · 数学 2020-12-23 Shuchen Guo

We show that the spin connection of the standard metric on a six-dimensional sphere gives an exact solution to the generalized self-dual equations suggested by Tchrakian some years ago. We work on an SO(6) gauge theory with a…

高能物理 - 理论 · 物理学 2011-02-03 Hironobu Kihara , Muneto Nitta

We study weighted Tikhonov regularization for large-scale linear discrete ill-posed problems with random noise. Under a polynomial upper-bound assumption on the generalized eigenvalues of the discrete forward operator, we derive stochastic…

数值分析 · 数学 2026-05-19 Duan-Peng Ling , Wenlong Zhang

We study a mutliscale jump process introduced in a work by Crudu, Debussche, Muller and Radulescu. Using an adequate coupling, we are able to prove the strong convergence, for the uniform topology, to a piecewise deterministic Markov…

概率论 · 数学 2026-03-03 Baptiste Nicolas Huguet

Consider the classical $(2+1)$-dimensional Solid-On-Solid model above a hard wall on an $L\times L$ box of $\bbZ^2$. The model describes a crystal surface by assigning a non-negative integer height $\eta_x$ to each site $x$ in the box and 0…

Using the Boltzmann weights of classical Statistical Mechanics vertex models we define a new class of Tensor Product Ansatzs for 2D quantum lattice systems, characterized by a strong anisotropy, which gives rise to stripe like structures.…

强关联电子 · 物理学 2009-11-07 M. A. Martin-Delgado , M. Roncaglia , G. Sierra

We develop a new continuous-time stochastic gradient descent method for optimizing over the stationary distribution of stochastic differential equation (SDE) models. The algorithm continuously updates the SDE model's parameters using an…

机器学习 · 计算机科学 2023-08-29 Ziheng Wang , Justin Sirignano

This paper is concerned with solutions to a one dimensional linear diffusion equation and their relation to some problems in stochastic control theory. A stochastic variational formula is obtained for the logarithm of the solution to the…

最优化与控制 · 数学 2009-12-02 Joseph G. Conlon , Mohar Guha

We consider a class of probability distributions on the six-vertex model, which originate from the higher spin vertex models in arXiv:1601.05770 and have previously been investigated in arXiv:1610.06893. For these random six-vertex models…

概率论 · 数学 2020-05-15 Evgeni Dimitrov , Mark Rychnovsky

We study the asymptotic shape of random unlabelled graphs subject to certain subcriticality conditions. The graphs are sampled with probability proportional to a product of Boltzmann weights assigned to their $2$-connected components. As…

组合数学 · 数学 2017-12-06 Benedikt Stufler

This paper investigates the parabolic scaling limit of a damped stochastic wave map from the real line into the two-dimensional sphere, perturbed by multiplicative Gaussian noise of co-normal type. We prove that under this rescaling, the…

概率论 · 数学 2025-07-29 Sandra Cerrai , Mengzi Xie

We consider inhomogeneous spatial random graphs on the real line. Each vertex carries an i.i.d. weight and edges are drawn such that short edges and edges to vertices with large weights occur with higher probability. This allows the study…

概率论 · 数学 2025-09-08 Peter Gracar , Lukas Lüchtrath , Christian Mönch

We consider the numerical solution of parameterized linear systems where the system matrix, the solution, and the right-hand side are parameterized by a set of uncertain input parameters. We explore spectral methods in which the solutions…

数值分析 · 数学 2017-01-09 Kookjin Lee , Kevin Carlberg , Howard C. Elman

Two-time-scale stochastic approximation is a popular iterative method for finding the solution of a system of two equations. Such methods have found broad applications in many areas, especially in machine learning and reinforcement…

最优化与控制 · 数学 2019-12-24 Thinh T. Doan , Justin Romberg

This work deals with the divisible sandpile model when an initial configuration sampled from a heavy-tailed distribution. Extending results of Levine et al. (2015) and Cipriani et al. (2016) we determine sufficient conditions for…

概率论 · 数学 2016-11-01 Alessandra Cipriani , Rajat Subhra Hazra , Wioletta M. Ruszel

We establish the sharpness of the percolation phase transition for a class of infinite-range weighted random connection models. The vertex set is given by a marked Poisson point process on $\mathbb{R}^d$ with intensity $\lambda>0$, where…

概率论 · 数学 2025-12-29 Alejandro Caicedo , Leonid Kolesnikov

We consider the stochastic six-vertex (S6V) model and asymmetric simple exclusion process (ASEP) under general initial conditions which are bounded below lines of arbitrary slope at $\pm\infty$. We show under Kardar-Parisi-Zhang (KPZ)…

概率论 · 数学 2024-12-25 Amol Aggarwal , Ivan Corwin , Milind Hegde

We present a detailed study of a four parameter family of elliptic weights on tilings of a hexagon introduced by Borodin, Gorin and Rains, generalizing some of their results. In the process, we connect the combinatorics of the model with…

数学物理 · 物理学 2018-04-13 Dan Betea